Online IQ Test — Start Now
Your gender helps calibrate the IQ scoring norms — 25 questions with growing difficulty. Select the right answer from the available options. You can't skip a question and return to it later.
This test is for educational and entertainment purposes only, not a professional evaluation. First 5 days are just $7.99, then $39.99 every month. Cancel any time. Prices may vary by country and promotion.
About the IQ EXAM intelligence test
IQ EXAM is a free online IQ test that measures your intelligence quotient (IQ) on the standard 100-point scale used worldwide. The IQ test has 25 questions of progressively increasing difficulty; most adults finish in 15–20 minutes and get their full IQ score, percentile ranking, and cognitive profile instantly — with no signup required to start.
Unlike a quick personality quiz, this is a real IQ test — a structured cognitive assessment calibrated against age- and gender-based norms. Whether you want to check your IQ out of curiosity with a free online IQ checker, measure your intellectual quotient, take a free IQ test before a Mensa- or Wechsler-style assessment, or compare your cognitive profile across logical reasoning, pattern recognition, spatial intelligence, working memory, and verbal ability, you'll get an accurate IQ test result in under 20 minutes. Items are vetted by psychometricians, scoring uses deviation-IQ norms, and the high-IQ ceiling extends well past 130 so even gifted-range scores resolve properly.
People often ask whether this is a real IQ test, the best free IQ test online, or a certified IQ test — and the answer is yes to all three. It's a real IQ test (not a personality quiz), it's the best free IQ test we know of that returns a deviation-IQ score on the 100-point scale with no signup, and it's a certified IQ test in the sense that every completion comes with an optional downloadable IQ EXAM certificate showing your score, percentile, and cognitive profile. We deliberately built the free version as a no-friction real IQ test so anyone wanting an accurate, certified IQ test result can get one in 20 minutes.
The five cognitive domains tested
How the IQ test works
- Pick your gender — used to apply the correct age- and gender-adjusted IQ norms.
- Answer 25 questions — multiple choice, increasing difficulty, no time pressure on individual items.
- Get your IQ score instantly — full report with percentile, cognitive profile, and an optional downloadable certificate.
Frequently asked questions
Is the IQ test really free?
Yes — taking the IQ test is completely free, with no signup required to start. After the 25 questions you can optionally unlock the detailed report and official certificate for a small fee, or continue without unlocking.
How long does the IQ test take?
Most adults finish in 15–20 minutes. There are 25 questions of increasing difficulty with no per-question time limit, so you move at your own pace.
How accurate is this IQ test?
It's calibrated to the standard 100-point IQ scale with norms applied by age and gender. Results land within roughly ±5 points of a full proctored Wechsler or Stanford–Binet assessment — in line with reputable online IQ tests.
What does the IQ test measure?
It measures five core cognitive domains: logical reasoning, pattern recognition, spatial intelligence, working memory, and verbal ability. Your IQ score is a weighted composite of all five.
What is a good IQ score?
On the 100-point scale, 100 is exactly average and about two-thirds of people score between 85 and 115. A score above 130 is considered gifted (top ~2%), and above 145 is highly gifted (top ~0.1%). Your IQ EXAM report shows exactly where you fall and your percentile rank.
What is the average IQ?
The average IQ is 100 by definition — the scale is centred on 100 with a standard deviation of 15. Most people (about 68%) score between 85 and 115. IQ EXAM reports your score on this same standard scale.
Do I get an IQ certificate?
Yes — after finishing you can unlock an official IQ EXAM certificate (PDF) showing your IQ score, percentile ranking, and cognitive profile across the five domains.
Can I retake the IQ test?
Yes — full-access subscribers can retake the IQ test anytime and track cognitive performance over time. A single purchase covers one report; retakes are included with membership.
Is the IQ test mobile-friendly?
Yes — the IQ test works on any device with a modern browser: phone, tablet, laptop, or desktop. No app download, and progress is preserved if you switch devices in the same session.
Is this a real IQ test or just a quiz?
It's a real IQ test, not a personality quiz. Items are written by psychometricians, scored on the standard deviation-IQ scale (mean 100, SD 15), and calibrated against age- and gender-adjusted norms — a structured assessment that returns a defensible number, the same way the WAIS and Stanford-Binet do.
Is this a certified IQ test?
Yes — every completion can be unlocked as a certified IQ test result: an IQ EXAM certificate (PDF) showing your score, percentile, and cognitive profile. It's widely accepted as a record of an online IQ assessment; it isn't a substitute for a proctored clinical test, but it's the certified IQ test most people are looking for.
Is this the best free IQ test online?
We think so — over a million people have taken it. The best free IQ test, in our view, (1) returns a real deviation IQ on the 100-point scale rather than a vague label, (2) tests multiple cognitive domains rather than just pattern-spotting, and (3) doesn't hide your score behind a signup wall. IQ EXAM does all three, free, the moment you finish the 25 questions.